File holder or guide



Sept. 20, 1949. w. G. SHEARER FILE HOLDER OR GUIDE Filed Jan. 5, 1948-INVVENTOR. WaH-Er E1 Shea-Par I ATTORNEYS.

Patented Sept. 20, 1949 "UNITED? I r 524825215 FILE HOLDER on GUIDE inmy application'sSerial:No.':562.. filedJanuary 1948. g In filing saws,particularly circular saws, various types of triangular, flat and roundfiles are required in order to shape and sharpen the saw teeth,whichnot. only require the. inclination, bevel and pitch angles of thefilestobe accurately controlled but in many instances require shapingalong curved surfaces. "In-said application it has been set forth thatthe filing device is equipped to holdthe files atvariousjadjustedangles-oi inclination, bevel. and pitch thru ;.the instrumentality ofa,file holdenwhichis. guided in aislotted guide held atsuoh angles, asrequired byqa, saw to be filed. The present invention particularlyrelates to the file holder for that purpose, tho not necessarily limitedthereto.

The principal object of the present invention is to provide such a fileholder which is provided with what might be termed universal grippingmeans for holding different types of files so as to extendlongitudinally therefrom as will be set forth in detail.

Further features, objects and advantages of my invention will appear inthe following detailed description supplemented by the accompanyingdrawings illustrating a highly satisfactory embodiment of my invention.

In the drawings:

Figs. 1 and 2 are perspective views of the file holder in accordancewith my invention, the views being taken from opposite ends of theholder to more fully illustrate the structure at the clamp end thereof.

Fig. 3 is a plan view thereof showing a triangular file held by theholder.

Fig. 4 is a transverse vertical sectional view taken on line 4-4 of Fig.3.

Fig. 5 is a fragmentary horizontal sectional view taken on line 5-5 ofFig. 4.

Fig. 6 is a similar horizontal sectional view of that part of the holderwithout the file and clamping screw. 7

Fig. 7 is a fragmentary horizontal transverse sectional view similar toFig. 5, with the end of a fiat type of file gripped in the holder clamp.

Fig. 8 is a perspective YEW of an adapter fol awe me 5, 1 94s'serialNo.5.63 whi cooperating-with thefile holder for gripping theshankendof'afiler- I. 4,. s

Fig. 9 is a fragmentary-horizontal transverse sectional view, similar tofig. 5- withfthe adapter andthe-shankendofrag flat file gripped in thehql lf- H Referring to the drawings in general the file holder-inaccordanceawithmyginvention comprises a; longitudinal shank or; bar ll0; of uniform rectangular crosssectionfor sliding in the :file guidemember of the device ;f orfiling circular saws'as set'forth inzmyaforesaid copending application, or for; other uses such asa filehandle. The file h ins' n u fsba lllv slpmv e W mp 5 H and is slotted atlz for cooperatin with the amp, and, aniadap enonke per; 3 :shown in ifi may a so c perate the h.- 1 a 7,.

The file holding clamp ll comprises a channel shaped element with itsends I4 welded to the sides of bar l0 adjacent to its end as best shownin Fig. 4, and the mid upper portion has a threaded aperture therethrufor receiving a clamping screw l5 so positioned as to engage a portionof a file I6, for holding it in the slot l2 in the end of bar l0underlying clamp II.

In saw filing for sharpening the teeth various types of triangular filesare employed in most instances so as shown in Figs. 1, 2, 4 and 6, slotI2 is tapered to conform with the surfaces of such a triangular file l6so that the third side ll of file i6 is in a horizontal position forengagement by the inner end of clamping screw l5.

Thus with file H5 in clamped position and provided with a handle [8 asshown in Fig. 3 the file is equipped with the holder for use in thedevice for filing saws or it may be employed as a handle or the like.

The file holder is adapted to grip a flat file [9 with equal facility asshown in Fig. 7. The sides 20 of this file engage the sides of clamp IIand clamping screw l5 maintains the file in the required position.

As shown in Figs. 8 and 9, the adapter or keeper l 3 is provided forgripping the shank or tang end 2| of a file 22 as may be desired in someinstances for operating it in a saw filing device, a flat file forjointing operations, or as a handle for a file 22 extending from itsshank 2|. The adapter l3 as shown comprises a longitudinal metal platehaving downwardly extending projections 24 at one end which engage thesides of bar IU of the file holder. Adjacent the same end are innerupwardly extending projections 25 which may be struck up from the plateelement as shown. These latter projections 25 are adapted to engage thesides of file shank 2| adjacent its end and when clamping screw I5 isturned into place engaging file shank 2| at a distance therefrom, thefile is securely held in the holder.

The file holder thus is adapted for holding various types of filesoperating as a holder for a saw filing device, a handle or otherwise.

I claim:

1. A file holder comprising, an elongated rectangular bar, a channelshaped clamping member having a web portion'between depending sidefianges, means integrally connecting the inner edges of the flanges ofsaid clamping member to the edges of the bar at one end thereof so as toprovide a longitudinal slot above the bar, ends clamping screw elementextending, thru the, web portion of said channel member toward theupperside of the bar for engaging and clampinga'file therein, said bar undersaid channel shaped clamping member having a downwardly tapered sloteXtending longitudinally therethrough, through which the'lower edgeportion' of a triangular file will project when secured in the holder bythe clamping screw.

2. A file holder comprising, an elongated rectangular bar, a channelshaped clamping member integrally connected to one end of said bar so asto providealongitudinalslot above the bar, said bar havin'g'a'tapered'longitudinal slot extending entirely throughth'ehd'of the barunderlying said channel" member for engagement with two sides ofatriarigularfile and a clamping screw element extending thru'tliehi'idportion of said channel member towardthe' slot in'the bar forengaging theother side of'thetriangular file and clamping the filetherein;

3. A file holder comprising, an elongated rec tangular bar, a channelshaped clamping mem her integrally connected to one end of said bar soas to provide a longitudinal slot above the bar, a clamping screwelement extending thru the mid portion of said channel member toward theside of the bar for engaging and clamping a file therein, an adapter forengaging the tang end of a file beyond the clamping means comprising a1onitudinal plate member insertable in said channel slot formation, andmeans extending from said plate for engaging the sides of a file tangadjacent to its end.

4. In a combination with a file holder compris ing an elongatedrectangular bar, a channel shaped clamping member integrally connectedto one end of said bar so as. to, provide a longitudinal slot above thebar, and a "clamping screw element extending thru the mid portion ofsaid channel member toward the side of the bar for engaging and clampinga file therein, an adapter for holding andcfentering the tang end of afile longitudinally of the bar comprising a longitudinal plate memberfor overlying the bar and extending one end into the clamping channel,said bar at its other end having lateral lugs extending downwardly so asto engage ,the sides of the bar, and a pair of lugs struck upwardly fromthe central portion 'of said plate adjacent to the same end for engagingthe sides of a file tang end and cooperating with the clamping screw formaintaining the file in a longitudinally extending'direction from thefile holder.

' WALTER G. SHEARER.

REFEBENQES. one! The following references are of record in the fi 9 grae?? V UNITED STATES BA'I'ENTS Number Name Date 593,793 Vreelan'd Nov.16, 1897 1,323,899 Mullin .i; '1: ec. 2, 1919 1,326,269 Ivy"; Dec. 30,1919 1,648,426 Sear

